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Subsonic flutter analysis addition to NASTRANA subsonic flutter analysis capability has been developed for NASTRAN, and a developmental version of the program has been installed on the CDC 6000 series digital computers at the Langley Research Center. The flutter analysis is of the modal type, uses doublet lattice unsteady aerodynamic forces, and solves the flutter equations by using the k-method. Surface and one-dimensional spline functions are used to transform from the aerodynamic degrees of freedom to the structural degrees of freedom. Some preliminary applications of the method to a beamlike wing, a platelike wing, and a platelike wing with a folded tip are compared with existing experimental and analytical results.
Document ID
19740006496
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Doggett, R. V., Jr. (NASA Langley Research Center Hampton, VA, United States)
Harder, R. L. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 7, 2013
Publication Date
September 1, 1973
Publication Information
Publication: NASTRAN: Users' Experiences
Subject Category
Structural Mechanics
Accession Number
74N14609
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19740006473Collected WorksNASTRAN: Users' experiences
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